Medical Dictionary

bornavirus

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noun bor·na·vi·rus \ ˌbȯr-nə-ˈvī-rəs \
variants: or borna virus or borna disease virus

medical Definition of bornavirus

:a single-stranded RNA virus (family Bornaviridae) that has a spherical virion with a lipoprotein envelope and chiefly infects the central nervous system of birds and mammals (such as sheep, dogs, and horses) causing mild to fatal disease
  • Bornaviruses, a group of RNA viruses that cause disease in horses and sheep, first inserted their genetic material into ancestral human DNA at least 40 million years ago …
  • —Tina Hesman SaeyScience News30 Jan. 2010

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